无线调车灯显信号为黄灯闪后绿灯长亮，其显示意义是什么？
参考答案：无线调车灯显信号为黄灯闪后绿灯长亮，其显示意义是减速。
.In my opinion, life in the twenty-first century is much easier than _______.
A．that used to be
B．it is used to
C．it was used to
D．it used to be
藏传佛教以何宗见解为主？
